Error: receive failed with KeyError on flickr x seconds ago

I just installed Gwibber on Karmic to give it a go and set up my Facebook and Flickr accounts. The Facebook account works great but the Flickr account doesn't. I get the following error:

receive failed with KeyError on flickr 0 seconds ago
            Traceback (most recent call last):
  File "/usr/lib/python2.6/dist-packages/gwibber/microblog/__init__.py", line 130, in run
    messages = self.perform_operation(opdata)
  File "/usr/lib/python2.6/dist-packages/gwibber/microblog/__init__.py", line 107, in perform_operation
    for message in output:
  File "/usr/lib/python2.6/dist-packages/gwibber/microblog/flickr.py", line 79, in receive
    for data in self.get_images()["photos"]["photo"]:
  File "/usr/lib/python2.6/dist-packages/gwibber/microblog/flickr.py", line 76, in get_images
    {"user_id": self.getNSID(), "extras": "date_upload,owner_name,icon_server"})
  File "/usr/lib/python2.6/dist-packages/gwibber/microblog/flickr.py", line 72, in getNSID
    {"username": self.account["username"]})["user"]["nsid"]
KeyError: 'user'

Is there anything I've done wrong in setting up my account? It just asked me for my user name on flickr and I checked that several time. I tried with the Yahoo ID too but it doesn't seem to resolve the problem.